I”m using a Sennheiser 416 with a Mix Pre III and a Tentacle Sync. TC was found on the audio really well for all my recordings.
Now suddenly – within 24 hours with nothing changed – the Tentacle connected to my mix pre says “no audio TC found”
“No Audio TC found” is correct for your MixPre files; it is File TC that you use on that machine.
If you are using a mk I version of the mix pre -3 and are feeding it TC from the tentacle sync E, you need to set the aux port to LTC in.